Gwybodaeth UVC

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A all golau UVC ladd y firysau a'r bacteria?

Amser: 2020 04-21-

For decades, scientists have been devoted to the research of UVC light for disinfection, especially when the UVC market is huge and the human pursuit of health is more important than ever before.


More and more reports indicate that UVC light products can kill viruses and bacteria higher than a 99.9% rate, which directly leads to the crazy purchase of UVC products.


But in fact, few people know exactly what UVC light is and whether UVC light is useful for sterilization.

Next, we'll explain in detail what UVC lights are, how they work, their precautions for use and some commercial applications i'ch helpu chi i gael dealltwriaeth glir.


uvc light sterilization


Wha is UVC light?


Fel y gwyddom i gyd, mae Golau'r Haul yn gymysgedd o egni ysgafn ar wahanol donfeddau.


Mae'r tonfeddi yn amrywio o 380 nanometr (nm) i 780 nanometr (nm) o'r enw golau gweladwy, tra bod y rhai y tu hwnt i ystod y donfedd yn cael eu galw'n olau anweledig.

Ultraviolet light is a type of invisible light ranging from 10 nm to 400 nm. And the function of UV light depends on the range of wavelength.

  • UV-A: 320nm i 400 nm

It makes up the majority of UV light reaching the Earth. And it can damage our skin.

  • UV-B: 280nm i 320nm

Gall drin afiechydon croen. Ond bydd gormod o amlygiad yn achosi llosg haul a hyd yn oed canser y croen. A dim ond llai na 2% o UVB all gyrraedd y ddaear.

  • UV-C: 200nm i 280nm

It is particularly good at sterilizing. But its penetration ability is very weak. Before reaching the ground, all UVC light will be absorbed by ozone in the atmosphere. That means, standing under the sun is useless for sterilization.

  • In summary: UV light Rule

Po fyrraf y donfedd, y cryfaf yw'r egni, ond po wannaf yw'r treiddiad, cyflymaf y diflaniad.


Function of UVC light

Gwybodaeth Gysylltiedig: Pa olau UV yw'r gorau?

Because UVC light can be used for sterilization, coupled with the epidemic environment, the market demand for UVC products can be described as Crazy now.

Ac fe gynyddodd prisiad y farchnad hyd yn oed o 140,000,000 o ddoleri'r UD i amcangyfrif o 500,000,000 o ddoleri'r UD.

The big question right now may be how does UVC light work and can it kill viruses & bacteria?


How does UVC light work?


Before the deep study of UVC light, I thought all sunlights have the sterilization effect. Bacteria and viruses will be killed by "sunburn" or heat.

But that's not the truth.


  • Sterilization Principle of UVC light


In fact, UVC light will destroy the DNA or RNA of the bacteria & viruses, without the use of chemicals, making them inactive and unable to reproduce.

Since the lifespan of single bacteria & viruses is very short, once they lose the reproduce ability, it means death. So the purpose of sterilization has been achieved.


In scientific research, it has been found that UVC light can use very little time to finish the disinfection process and make most microbes reduction up to 99.99%.


Research of UVC light

Based on this information, UVC light is believed to be quiet effective at killing viruses and bacteria.


However, the vitality of different viruses and bacteria are different. Some bacteria&viruses may be injured once they are exposed to UVC light, while others are not.


Os nad yw'r dos UV yn ddigonol, bydd rhai firysau ond yn colli gweithgaredd dros dro, ac yna'n atgyweirio eu strwythur eu hunain yn araf.


  • Special requirements of UVC lights

At present, there are no specific figures to show how much UV dose flu viruses needs to be killed. Maybe 1,085 mJ / cm2 or 3,640 mJ / cm2 . Anyway, a huge number.

You may be wondering if we stand under the sunlight containing UVC light, can we be disinfected by it?

Unfortunately, the answer is no. Although the sterilization ability of UVC light is extremely strong, the penetration ability to objects (including air) is extremely weak. Before reaching the ground, all UVC light will be filtered out by ozone in the atmosphere.

Dyma pam mae angen i ni ddefnyddio cludwr tebyg i lampau diheintio uwchfioled i gyflawni diheintio.


Please pay attention to the fact that most UV lamps on the market are only designed to meet the common standard, that is, 40mJ / cm2 UV dose required for a 99.99% inactivation rate.


Study result of UVC light

Further considering the decay of UVC light in the air, those lamps make no sense for disinfection.

Felly peidiwch â chredu'n hawdd bod rhai cwmnïau'n dweud "gallwn ladd y firysau a'r bacteria", weithiau dim ond yr iaith farchnata ydyw.

Mae'n rhaid i ni sylweddoli mai dim ond effeithlonrwydd, amser a chost yw'r ffactorau allweddol yn ein dewis o lampau UV.


Are ultraviolet lamps containing uvc light safe?


Although UVC light can indeed kill viruses and bacteria, there are various problems with household ultraviolet disinfection lamps on the market:

(1) Mae lampau diheintio uwchfioled traddodiadol yn fawr (o leiaf uchder 40cm neu'n uwch), effeithlonrwydd isel. Yn y bôn, gall ffynhonnell golau 1W LED gwmpasu 1 metr sgwâr yn unig o le.


(2) Mae ffynhonnell golau y mwyafrif o lampau diheintio uwchfioled yn cynnwys mercwri, sy'n ddrwg i'r amgylchedd ac iechyd os caiff ei ryddhau.

(3) Mae'r mwyafrif o lampau diheintio uwchfioled yn lampau sbectrwm eang gan gynnwys UVC, UVA, ac UVB, sy'n debygol o gynhyrchu osôn, gan arwain at symptomau fel blinder, peswch, tyndra'r frest, cyfog, a cholli cof.


Applications of UVC light

From this perspective, the main application scenarios of UVC light should be industrial types to maintain safe.


Applications of uvc light


To make better use of UVC light, we have developed a new lighting technology, which can make the UVC energy in a very small size with 3.5mm x 3.5mm without mercury.


Gyda'r maint hwn, gall fod yn berthnasol mewn llawer o offer cludadwy sydd â swyddogaethau diheintio:

(1) Arwyneb


Arwynebau halogedig fel ystafelloedd ac offer ysbytai, ystafelloedd byw, meysydd awyr, a bron pob man cyhoeddus neu eitem breifat.


(2) Dŵr


Mercury-free UVC light is a clean and safe water disinfectant, UVC LED based solutions tackle these pathogens without impacting the water's smell, taste or mineral contents.

Gallwn ddefnyddio datrysiadau UVC yn y system puro dŵr neu'r system toiledau.


(3) Aer


Mae purwyr aer yn tynnu 99.97% o ronynnau yn yr awyr, fodd bynnag, nid yw'r hidlwyr yn tynnu micro-organebau pathogenig bach, fel ffliw.

Gallwn ddefnyddio datrysiadau UVC yn y system puro aer neu'r system dwythell aerdymheru fasnachol.


How to use UVC light

All in all, UVC light can indeed kill viruses and bacterial if we choose the right system for specific applications.


Erthygl Cysylltiedig: Canllaw'r prynwr yn y pen draw ar eich pryniant Lampau UV


Datrysiad LED UVC effeithlon ar gyfer Minisplits


Datrysiad UVC effeithlon ar gyfer Unedau HVAC